Emerson DeltaV™ Electronic Marshalling CIOC carrier

The CIOC carrier is mounted to the top of a vertical DIN

rail and up to eight CHARM Baseplates are mounted below

it, snapping easily to the DIN rail as they are connected to

each other. The bus termination assembly is attached at the

bottom. A standard DIN-rail lock is used to keep the entire

assembly in place.

A pair of CIOCs installs on the carrier and communicates

over a redundant Ethernet network with up to four

controllers, allowing great flexibility and ease of system

expansion. Communication modules are available for

copper and fiberoptic media.

Each baseplate is ordered with 12 terminal blocks: standard

terminal blocks, fused injected power terminal blocks, or

relay output terminal blocks.

Electronic Marshalling eliminates the need to partition the

I/O wiring to specific channels based on signal type. Simply

connect field signal multi-cores in an orderly fashion as

desired. Install the appropriate CHARM to complete the

field circuit and the signal is ready to be used by any one of

four controllers. No cross-wiring required.

Each CHARM acts as a circuit protection device and field

wiring disconnect. Signals are inherently current-limited

to protect against wiring faults to ground. Each CHARM

provides surge protection to meet industry standards in

the area of EMC. Under extreme overvoltage conditions

due to incorrect field wiring, the CHARM will act as a fuse to

protect adjacent channels. Signal faults are thus isolated to

the single CHARM.